Route 320 is a collector road in the Canadian province of Nova Scotia. It is located in Richmond County and connects Louisdale at Exit 46 on Highway 104 with Arichat at Route 206 . It crosses the Lennox Passage using the Burnt Island Bridge (a drawbridge) that connects Cape Breton Island to Isle Madame. Communities Arichat D'Escousse Poulamon Martinique Lennox Passage Louisdale Parks Pondville Provincial Park Lennox Passage Provincial Park History The section of Collector Highway 320 from Arichat to Harbourview Crescent was once designated as Trunk Highway 20. See also List of Nova Scotia provincial highways References Map of Nova Scotia Nova Scotia provincial highways Roads in Richmond County, Nova Scotia